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      07-11-2015, 07:16 AM   #1
gsxrliterbikz
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Just installed a MS catless x pipe.

So I picked up an x pipe from a local forum member.
Shot over to a friends house last night and tossed it on. But when removing the old pipe I had something odd happen. As we took it down, the header flange on the drivers side fell off.
Anyone ever see that before?

Here's a pic



I looked a bit closer and there is no sign that it was ever welded on. The pass side flange is welded on tight.
Ever since buying it last December I noticed it had a slight exhaust leak, especially when cold. I guess this could have caused it.

Anyway, holy crap the x pipe sounds great!
At start up and just cruising around it has a nice note to it. Even up to 3500-4k it's pretty docile.
But mash the go pedal and
There's a def. jump in power. Not a ton, but enough to feel on the ole butt dyno.
I'll post up a vid later. I shot a before video and now I just need to get the after.
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      07-11-2015, 11:49 AM   #2
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X pipe

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      07-11-2015, 12:14 PM   #3
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When I was changing out my drive shaft the flange on mine fell off as well, which was funny because the other flange was stuck on like a mother.
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      07-11-2015, 12:38 PM   #4
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We had a car come in that had bottomed out the x-pipe on a speed bump and that flange had fallen off. Thinking he needed a new header, luckily that flange just pops back on.

Car sounds awesome BTW.
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Last edited by kevin @ eas; 07-11-2015 at 12:57 PM.
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      07-11-2015, 12:38 PM   #5
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Sounds good! Mine is connected to the Dinan Axle-Back.
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      07-11-2015, 12:59 PM   #6
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I seem to remember one of mine was loose as well. I didn't think they were supposed to be welded?? Just stay on with pressure when crushing the gasket.
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      07-11-2015, 01:27 PM   #7
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Thanks guys!
Good to know I'm not the only one. It's possible that it's supposed to look like that. Maybe to allow for a minimal amount of movement under heavy acceleration.
My exhaust leak seems to be gone anyway. Or at least I can't hear it anymore
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      07-11-2015, 02:51 PM   #8
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I had a lil rasp, tin can sound on my MS until i replaced the donut gaskets.

The car sounds amazing now.
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      07-11-2015, 02:56 PM   #9
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Quote:
Originally Posted by V1.47fan View Post
I had a lil rasp, tin can sound on my MS until i replaced the donut gaskets.

The car sounds amazing now.
I installed it with new ones from the dealer.
I installed the factory trans bracket on the MS pipes. It was a little loose fitting so I think I'm getting some vibration/metallic rasp from that.
I think I might have a shop tack weld the clamps on.
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      07-11-2015, 03:57 PM   #10
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Sounds good! Loved mine but went to ARH headers and have no use for it, for sale if anyone interested in like new MS Xpipe.
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      07-11-2015, 07:14 PM   #11
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Quote:
Originally Posted by Bomiz View Post
Sounds good! Mine is connected to the Dinan Axle-Back.
Mind posting a video of the sound?
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      07-11-2015, 11:51 PM   #12
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Yeah! One side is loose so that you can adjust or straitened out the exhaust to match up the safety plate holes to be bolted on.

It sounds like the MPE?
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      07-12-2015, 08:42 AM   #13
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Quote:
Originally Posted by Tracyis300 View Post
Yeah! One side is loose so that you can adjust or straitened out the exhaust to match up the safety plate holes to be bolted on.

It sounds like the MPE?
What do you mean by safety plate? The middle exhaust support? The exhaust is mounted to that via rubber so there is flex there.
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      07-12-2015, 11:27 AM   #14
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Quote:
Originally Posted by pbonsalb
Quote:
Originally Posted by Tracyis300 View Post
Yeah! One side is loose so that you can adjust or straitened out the exhaust to match up the safety plate holes to be bolted on.

It sounds like the MPE?
What do you mean by safety plate? The middle exhaust support? The exhaust is mounted to that via rubber so there is flex there.
Yes!
If you ever take off the mid section, then that should be the last thing to unbolt.
The stock mid section is pretty heavy when your under the car with limited space, trying to take or put back on. And that plate makes the job allot easier if your alone.
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      07-12-2015, 11:32 AM   #15
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Quote:
Originally Posted by FNG View Post
Mind posting a video of the sound?
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      07-13-2015, 08:22 AM   #16
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I guess that would be why it sounds like there's an exhaust leak when you start the car up cold!

I thought I was going crazy. People are telling me, "that's totally normal, it's not an exhaust leak, they all sound like that" and I'm over here saying wait a minute. I know what an exhaust leak sounds like. That's an exhaust leak...
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      07-13-2015, 10:00 AM   #17
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Maybe the cone gaskets compress and make the seal. If they fail, there is a leak.
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      07-13-2015, 10:49 PM   #18
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Quote:
Originally Posted by pbonsalb View Post
Maybe the cone gaskets compress and make the seal. If they fail, there is a leak.
That would be my guess. The tiniest bit of movement on that header can wear out that seal and cause a leak.
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      07-14-2015, 12:32 PM   #19
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Those conical gaskets are used specifically to allow movement. You'd be surprised how tough it is to cause that type of connection to leak. I've seen those gaskets reused on numerous headers that were removed and reinstalled for dyno testing on project cars for weeks or months without ever leaking.

The leak I was referring to is where that flange slides onto the header outlet. The gasket won't reach back in there. That closes up when the header warms up and expands. You can hear the exhaust leak when your engine is started cold, and then it's gone in less than a minute.
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